Environmental Science

3. The scientific study of chemicals found in the environment.
4. Nonliving physical and chemical components of an ecosystem.
5. The first step of the scientific method using the senses to gather information.
10. The study of Earth's atmosphere and weather processes.
11. A place where materials are naturally stored in a biogeochemical cycle.
13. A well-supported explanation of natural phenomena.
15. The process by which plants release water vapor into the atmosphere.
16. Excessive growth of algae caused by nutrient pollution.
18. The branch of science that studies nonliving matter and energy.
19. Water flowing over land after rainfall or melting snow.
20. Rain made acidic by sulfur dioxide and nitrogen oxides.
21. The process of removing salts from seawater.
22. The study of interactions between organisms and their environment.
25. The process in which plants use carbon dioxide to produce food.
27. The scientist who introduced the Four Laws of Ecology.
28. Organized body of knowledge obtained through observation and experimentation.
29. The solid outer layer of the Earth.
30. The branch of ecology that studies populations of the same species.

1. All of Earth's water resources including oceans, rivers, lakes, and groundwater.
2. The process that converts atmospheric nitrogen into ammonia.
6. The branch of science that studies living organisms.
7. Commoner's ecological law stating that everything affects everything else.
8. Living components of an ecosystem.
9. A statement describing a constant pattern in nature.
12. The common name for harmful algal blooms.
14. The protective blanket of gases surrounding Earth.
17. The part of Earth where life exists.
23. The study of Earth's crust, rocks, and soils.
24. The movement of chemical elements through living and nonliving components of Earth.
26. A testable explanation for an observation.